公开(公告)号：US20060235157A1

公开(公告)日：2006-10-19

申请号：US10550479

申请日：2004-03-12

申请人： Jun Kanega ,  Shigeru Kumamoto ,  Takashi Enokida

发明人： Jun Kanega ,  Shigeru Kumamoto ,  Takashi Enokida

IPC分类号： C08L27/12

CPC分类号： C08F214/18 ,  C08F6/22 ,  C08L27/12

摘要： A process for preparing a fluorine containing copolymer by an emulsion polymerization method in the presence of aqueous ammonia as a pH modifier, and a molded article obtainable by melt molding or crosslinking molding the fluorine containing copolymer are disclosed. In preparing the fluorine containing copolymer by coagulation of the fluorine containing copolymer contained in a fluorine containing copolymer dispersed aqueous solution, it is preferred to use a cationic surfactant and a water soluble organic solvent as a coagulating agent used for the above coagulation. The surfactant is preferably represented by the formula (R4N+)X− wherein R is an alkyl group of 1 to 22 carbon atoms, a fluoroalkyl group obtainable by fluorine substituting at least a part of hydrogen atoms present in the above alkyl group or hydrogen, four R's may be the same or different provided that they are not hydrogen atoms simultaneously, and X is a halogen atom. The process for preparing a fluorine containing copolymer provides a decrease in a concentration of metal elements, which act as an impurity source, for example, having a metal element concentration of not more than 1 ppm.

摘要翻译： 公开了一种通过乳液聚合法在氨水作为pH调节剂的存在下制备含氟共聚物的方法，以及通过熔融模塑或交联模塑含氟共聚物得到的成型制品。 在通过含氟共聚物分散水溶液中含有的含氟共聚物的凝聚来制备含氟共聚物时，优选使用阳离子表面活性剂和水溶性有机溶剂作为上述凝结用的凝结剂。 表面活性剂优选由下式（R 4 N - ）其中R是1至22个碳原子的烷基， 可以通过氟取代存在于上述烷基中的氢原子的至少一部分的氟烷基或氢，四个R可以相同或不同，条件是它们不同时为氢原子，X为卤素原子。 制备含氟共聚物的方法提供了作为杂质源的金属元素的浓度降低，例如金属元素浓度不大于1ppm。

公开(公告)号：US07420017B2

公开(公告)日：2008-09-02

申请号：US10550479

申请日：2004-03-12

申请人： Jun Kanega ,  Shigeru Kumamoto ,  Takashi Enokida

发明人： Jun Kanega ,  Shigeru Kumamoto ,  Takashi Enokida

IPC分类号： C08F114/18

CPC分类号： C08F214/18 ,  C08F6/22 ,  C08L27/12

摘要： A process for preparing a fluorine-containing copolymer by an emulsion polymerization method in the presence of aqueous ammonia as a pH modifier, and a molded article obtainable by melt molding or crosslinking molding the fluorine-containing copolymer. In preparing the fluorine-containing copolymer by coagulation of the fluorine-containing copolymer contained in a fluorine-containing copolymer dispersed aqueous solution, it is preferred to use a cationic surfactant and a water soluble organic solvent as a coagulating agent used for the above coagulation. The surfactant is preferably represented by the, formula (R4N+)X− wherein R is an alkyl group of 1 to 22 carbon atoms, a fluoroalkyl group obtainable by fluorine substituting at least a part of hydrogen atoms present in the above alkyl group or hydrogen, four R's may be the same or different provided that they are not hydrogen atoms simultaneously, and X is a halogen atom. The process for preparing a fluorine-containing copolymer provides a decrease in a concentration of metal elements, which act as an impurity source, for example, having a metal element concentration of not more than 1 ppm.

摘要翻译： 在氨水作为pH调节剂的存在下，通过乳液聚合法制备含氟共聚物的方法，以及通过熔融模塑或交联成型含氟共聚物得到的成型体。 在通过含氟共聚物分散水溶液中含有的含氟共聚物的凝结制备含氟共聚物时，优选使用阳离子性表面活性剂和水溶性有机溶剂作为上述凝结剂所使用的凝固剂。 表面活性剂优选由式（R 4 S）N - （O）X-X）表示，其中R是1至22个碳原子的烷基 可以通过氟取代存在于上述烷基中的至少一部分氢原子的氟代烷基或氢，四个R可以相同或不同，条件是它们不同时为氢原子，X为卤素原子。 制备含氟共聚物的方法使作为杂质源的金属元素的浓度降低，例如金属元素浓度不大于1ppm。